DETERMINATION OF MAIN NOISE SOURCES IN A THERMAL POWER PLANT

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JAHANGIRI M.; GOLMOHAMMADI R.; ALIABADI M.

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Journal: Journal of Health and Safety at Work Year:2014 | Volume:4 | Issue:3 Page(s): 13-22

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Title

DETERMINATION OF MAIN NOISE SOURCES IN A THERMAL POWER PLANT

Author(s)

JAHANGIRI M. | GOLMOHAMMADI R. | ALIABADI M. | Issue Writer Certificate

Keywords

NOISEQ2

NOISE POLLUTIONQ3

THERMAL POWER PLANTQ3

FEED WATER PUMPQ3

Abstract

Introduction: The Power plants are as the major industries that have a large number of workers, providing they health is important. Exposure to occupational NOISE is the pervasive physical agent in industries like power plants and may impact health and for safety status for people. Determination of the sources of NOISE in workplaces is important step in NOISE control plans. This study aimed to assess NOISE pollution and determine the main sources of NOISE in a power plant for.Material and Method: This descriptive cross-sectional study was conducted on the ground floor of the turbine unit of a THERMAL POWER PLANT. Measurements was done based on the ISO-9612 and ISO-11200 standard using by the calibrated sound level meter model TES-1389 on “A” frequency weighting and “Slow” mode for time response. Surfer V.10 software was used for interpolation and NOISE maps producing. Based on grid method measuring for indicating of NOISE propagation, we set buffer of danger areas to determine main sources of NOISE. Also, we used the minimized grid method for measuring and study of NOISE denotation in vertical surface in each main source.Result: The results showed that the measured indoor sound pressure level in all areas where at the risk category of the units. The highest average sound pressure level was belonged to the unit 2, with 93.1 dB (A). We find the FEED WATER PUMPs were the main sources in all of the studied units. Among the four main components of the main sources, the highest NOISE levels associated with the main pump and the gearbox section with about 100 9B (L) and dominant frequency of 2000 Hz.Conclusion: Considering that FEED WATER PUMPs had major sources in indoor power plant NOISE pollution, engineering NOISE control such as providing enclosures is necessary to reduce NOISE pollution to safe levels in the studied plant it is necessary.

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APA: Copy

JAHANGIRI, M., GOLMOHAMMADI, R., & ALIABADI, M.. (2014). DETERMINATION OF MAIN NOISE SOURCES IN A THERMAL POWER PLANT. JOURNAL OF HEALTH AND SAFETY AT WORK, 4(3), 13-22. SID. https://sid.ir/paper/235600/en

Vancouver: Copy

JAHANGIRI M., GOLMOHAMMADI R., ALIABADI M.. DETERMINATION OF MAIN NOISE SOURCES IN A THERMAL POWER PLANT. JOURNAL OF HEALTH AND SAFETY AT WORK[Internet]. 2014;4(3):13-22. Available from: https://sid.ir/paper/235600/en

IEEE: Copy

M. JAHANGIRI, R. GOLMOHAMMADI, and M. ALIABADI, “DETERMINATION OF MAIN NOISE SOURCES IN A THERMAL POWER PLANT,” JOURNAL OF HEALTH AND SAFETY AT WORK, vol. 4, no. 3, pp. 13–22, 2014, [Online]. Available: https://sid.ir/paper/235600/en

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